Create a highly detailed, lifelike image of a robot from the Overlord series, featuring a close- up shot of the robot on a table with a purple and green color scheme. Incorporate the golden ratio in the composition and ensure the image has a cinematic feel. The robot should have symmetrical wings, a tiny midriff, and a big pear- shaped head with dark teal accents. Include a nuclear bomb and a portcullis in the background, with Russian machine guns visible. Use Octane render and Unreal Engine to achieve a high level of realism. The final image should be in 8K resolution with an iridescent effect